检索结果-南通市图书馆

南海陆缘伸展破裂过程中的构造迁移和盆地演化

在线全文

学校读者我要写书评

暂无评论

地质学报 2024年第4期98卷 1101-1113页

作者：罗盼任建业雷超中石化石油物探技术研究院有限公司江苏南京210013 中国地质大学(武汉)海洋学院海洋地质资源湖北省重点实验室湖北武汉430074 南方海洋科学与工程广东省实验室(广州) 广东广州511458 中国地质大学(武汉)构造与油气资源教育部重点实验室湖北武汉430074

为了阐明南海由陆向洋的过渡带内构造活动的时间空间迁移过程,本文以两条跨南海东部共轭被动陆缘和南海西南部共轭陆缘的两条长剖面为基础,进行精细的构造解释和分析,在南海洋陆转换带内确定了出Tb、SD、PD和Bi四个一级层序界面,并以... 详细信息

为了阐明南海由陆向洋的过渡带内构造活动的时间空间迁移过程,本文以两条跨南海东部共轭被动陆缘和南海西南部共轭陆缘的两条长剖面为基础,进行精细的构造解释和分析,在南海洋陆转换带内确定了出Tb、SD、PD和Bi四个一级层序界面,并以这4个一层序界面为界,将南海陆缘划分为:早期断陷盆地(Tb—SD)、晚期拆离盆地(SD—PD)和断坳转换盆地(PD—Bi)。通过对同一剖面不同构造单元带内同构造地层的分析,发现构造活动时代由陆向洋逐渐变年轻;通过对比不同剖面同一构造单元带内的同构造地层发现,构造活动时代沿着海底扩张迁移的方向逐渐变年轻。因此,在南海扩张期间,岩石圈的伸展变形不仅表现为向洋方向的迁移,同时表现为向海底扩张方向的迁移。

关键词：洋陆转换带拆离盆地同构造地层构造迁移

Functional genomics of Brassica napus:Progresses,challenges,and perspectives

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Plant Biology 2024年第3期66卷 484-509页

作者： Zengdong Tan Xu Han Cheng Dai Shaoping Lu Hanzi He Xuan Yao Peng Chen chao Yang Lun Zhao qing-Yong Yang Jun Zou Jing Wen Dengfeng Hong chao Liu Xianhong Ge Chuchuan Fan Bing Yi Chunyu Zhang chaozhi Ma Kede Liu Jinxiong Shen Jinxing Tu Guangsheng Yang Tingdong Fu Liang Guo Hu Zhao National Key Laboratory of Crop Genetic Improvement Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhan 430070China Yazhouwan National Laboratory Sanya 572025China

Brassica napus,commonly known as rapeseed or canola,is a major oil crop contributing over 13%to the stable supply of edible vegetable oil *** and understanding the gene functions in the *** genome is crucial for genomic breeding.A group of genes controlling agronomic traits have been successfully cloned through functional genomics studies in *** this review,we present an overview of the progress made in the functional genomics of ***,including the availability of germplasm resources,omics databases and cloned functional *** on the current progress,we also highlight the main challenges and perspectives in this *** advances in the functional genomics of *** contribute to a better understanding of the genetic basis underlying the complex agronomic traits in *** and will expedite the breeding of high quality,high resistance and high yield in *** varieties.

关键词： accelerate breeding Brassica napus functional genomics high resistance high yield

The Impact of Bias Row Noise to Photometric Accuracy:Case Study Based on a Scientific CMOS Detector

在线全文

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2024年第2期24卷 228-246页

作者： Li Shao Hu Zhan chao Liu Haonan Chi Qiuyan luo Huaipu Mu Wenzhong Shi National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China University of Chinese Academy of Sciences Beijing 100049China Institute for Frontier in Astronomy and Astrophysics Beijing Normal UniversityBeijing 100875China

We tested a new model of CMOS detector manufactured by the Gpixel Inc,for potential space astronomical *** laboratory,we obtain some bias images under the typical application *** these bias images,clear random row noise pattern is *** row noise also contains some characteristic spatial *** quantitatively estimated the impact of this feature to photometric measurements,by making simulated *** compared different bias noise types under strict parameter *** result shows the row noise will significantly deteriorate the photometric *** effectively increases the readout noise by a factor ***,if it is properly removed,the image quality and photometric accuracy will be significantly improved.

关键词： instrumentation detectors-methods statistical-techniques image processing

Iodine Nutrition, Thyroid-stimulating Hormone, and Related Factors of Postpartum Women from three Different Areas in China: A Cross-sectional Survey

在线全文

学校读者我要写书评

暂无评论

Biomedical and Environmental Sciences 2024年第3期37卷 254-265页

作者： SHAN Xiao Yun ZOU Yan HUANG Li Chun JIANG Shan ZHOU Wei Wen QIN Qiu Lan LIU Chang qing luo Xiao Yan LU Jia Xi MAO De Qian LI Min YANG Zhen Yu YANG Li Chen Key Laboratory of Trace Element Nutrition of National Health Committee National Institute for Nutrition and HealthChinese Center for Disease Control and PreventionBeijing 100050China Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards School of Public HealthHengyang Medical SchoolUniversity of South ChinaHengyang 241001HunanChina Zhejiang Provincial Center for Disease Prevention and Control Hangzhou 310051ZhejiangChina Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention Nanning 530028GuangxiChina Hebei Provincial Center for Disease Control and Prevention Shijiazhuang 050021HebeiChina

Objective Studies on the relationship between iodine,vitamin A(VA),and vitamin D(VD)and thyroid function are *** study aimed to analyze iodine and thyroid-stimulating hormone(TSH)status and their possible relationships with VA,VD,and other factors in postpartum *** A total of 1,311 mothers(896 lactating and 415 non-lactating)from Hebei,Zhejiang,and Guangxi provinces were included in this *** urinary iodine concentration(UIC),TSH,VA,and VD were *** The median UIC of total and lactating participants were 142.00µg/L and 139.95µg/L,*** median TSH,VA,and VD levels in all the participants were 1.89 mIU/L,0.44μg/mL,and 24.04 ng/mL,*** differences in the UIC were found between lactating and non-lactating *** and TSH levels were significantly different among the three *** rural UIC was higher than the urban *** mothers had a higher UIC and a higher prevalence of excessive *** UICs and TSHs levels were observed in both the VD deficiency and insufficiency groups than in the VD-sufficient *** adjustment,no linear correlation was observed between UIC and VA/*** interaction was found between vitamins A/D and UIC on TSH *** The mothers in the present study had no iodine ***,area type,BMI,and VD may be related to the iodine status or TSH levels.

关键词： Median urinary iodine concentration Thyroid-stimulating hormone Vitamin A Vitamin D Postpartum women

“雅颂之音”与“讽谕之鸣”:论礼乐复兴视域下的宋初文学

在线全文

学校读者我要写书评

暂无评论

新疆大学学报（哲学社会科学版） 2024年第1期52卷 131-138页

作者：罗超华山东大学文学院山东济南250100

宋初文坛纷繁复杂,不仅呈现出南北对峙、难以融合的紧张局面,还产生了时文与古文的创作分歧。而于此之外,士人群体内又共同含纳着一股颂美君王功业、宣扬帝国政治的风气。尽管从传统文艺审美的角度看,这种风气催生的文学作品多属程式化... 详细信息

宋初文坛纷繁复杂,不仅呈现出南北对峙、难以融合的紧张局面,还产生了时文与古文的创作分歧。而于此之外,士人群体内又共同含纳着一股颂美君王功业、宣扬帝国政治的风气。尽管从传统文艺审美的角度看,这种风气催生的文学作品多属程式化的礼仪书写,但若将之置于宋初礼乐复兴视域下进行更深层次解读,则于某些赋颂中可观觇士大夫政治主体意识的觉醒迹象,且雅颂主旋律中讽喻之声的鸣起,又宣示了宋初文人对唐人风雅观的进一步开拓。这些被程式化书写遮蔽的内容,实质是政治与文学的合奏交响,二者间表里经纬的错综关系及由此生成的强力互动,正体现出此间特殊的文学生态。

关键词：礼乐宋代雅颂文学风气儒道

Association between composite dietary antioxidant index and stroke among individuals with diabetes

在线全文

学校读者我要写书评

暂无评论

World Journal of Diabetes 2024年第8期15卷 1742-1752页

作者： Hong-Qiang Zhang Jie Shi Tong Yue Jia-Hao Weng Xu-Lin Wang Hao Wang Xiao-Yu Su Xue-Ying Zheng Si-Hui luo Yu Ding chao-Fan Wang Department of Cardiology Centre for Leading Medicine and Advanced Technologies of IHMThe First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230001Anhui ProvinceChina Department of Endocrinology Centre for Leading Medicine and Advanced Technologies of IHMThe First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230001Anhui ProvinceChina Graduate School Bengbu Medical CollegeBengbu 233030Anhui ProvinceChina Department of Endocrinology and Metabolism The Third Affiliated Hospital of Sun Yat-sen UniversityGuangdong Provincial Key Laboratory of DiabetologyGuangzhou 510630Guangdong ProvinceChina

BACKGROUND Recent research has underscored the potentially protective role of dietary antioxidants against chronic conditions,such as cardiovascular diseases and *** composite dietary antioxidant index(CDAI),which reflects the overall intake of key dietary antioxidants,has been identified as a crucial metric for exploring this *** previous research has shown a negative correlation between CDAI levels and stroke risk in prediabetic individuals,there remains a substantial gap in understanding this association among individuals with diabetes,who are at an inherently greater risk for cerebrovascular *** To investigate the association between CDAI and stroke risk in individuals with *** Using a cross-sectional study design,this investigation analyzed data from the National Health and Nutrition Examination Survey spanning from 2003 to 2018 that included 6735 participants aged over 20 years with *** CDAI was calculated from 24-h dietary recalls to assess intake of key antioxidants:Vitamins A,C,and E;carotenoids;selenium;and *** logistic regression and restricted cubic spline analysis were used to rigorously examine the relationship between CDAI and stroke *** The participant cohort,with an average age of 59.5 years and a slight male majority,reflected the broader demographic characteristics of individuals with *** analysis revealed a strong inverse relationship between CDAI levels and stroke ***,those in the highest quintile of CDAI demonstrated a 43%lower prevalence of stroke compared to those in the lowest quintile,even after adjustments for various *** finding not only highlights the negative association between CDAI and stroke risk but also underscores the significant potential of antioxidant-rich diets in reducing stroke prevalence among patients with *** Our findings suggested that CDAI was inversely associated with stroke prevalence among pa

关键词： Stroke Diabetes Composite dietary antioxidant index National Health and Nutrition Examination Survey Crosssectional study

Tianxia qingshi(World Circumstances)in the Political World of Traditional Chinese Scholar Officials:A Case Study of the“Green Sprouts Policy Polemic”in the Early Xining Period of the Northern Song

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Social Sciences in China 2024年第1期45卷 89-105页

作者： luo Yi'nan School of Government Peking University

How to deal with differences is a question that any political body must respond *** individualist perspective emphasizes that actors will adopt measures to exclude or even eliminate divergent claims in order to gain control over interests power or statutory policy,but the rich experience of traditional Chinese scholar officials offers the possibility of going beyond the limitations of this *** perspective of“tianxia qingshi(world circumstances)”as a new narrative reveals a unique practical logic and dynamic mechanism in Chinese political civilization that have been overlooked by the individualist ***“Green Sprouts policy(qing miao fa)polemic”in the early years of the New Policies era of the Northern Song dynasty(960-1127)presents a historical situation that has not been given full attention by existing research.

关键词： tianxia qingshi(world circumstances) “Green Sprouts policy polemic ”dispute practice scholar-official politics

基于力学性能和结晶行为探究不同成核剂对聚乳酸性能影响

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

复合材料学报 2024年第6期41卷 3168-3181页

作者：吕超罗书品郭文静中国林业科学研究院木材工业研究所北京100091

探究杨木纤维作为一种生物基成核剂对聚乳酸(PLA)力学和结晶性能的影响,并与常用的成核剂滑石粉和酰肼化合物对比。分别将杨木纤维(WF)(0.5wt%、1wt%、2wt%、4wt%)、滑石粉(Talc)(1wt%、2wt%、4wt%、8wt%)和酰肼化合物(TMC-300)(0.3wt%... 详细信息

探究杨木纤维作为一种生物基成核剂对聚乳酸(PLA)力学和结晶性能的影响,并与常用的成核剂滑石粉和酰肼化合物对比。分别将杨木纤维(WF)(0.5wt%、1wt%、2wt%、4wt%)、滑石粉(Talc)(1wt%、2wt%、4wt%、8wt%)和酰肼化合物(TMC-300)(0.3wt%、0.5wt%、1wt%、2wt%)在不同含量条件下与PLA进行熔融共混挤出、模压制备复合材料,基于力学性能确定每种成核剂在PLA中的较优添加量,并进一步在较优添加量条件下研究3种成核剂对PLA结晶性能的影响,包括结晶行为、晶体形貌和结构。3种成核剂均能提高PLA的缺口冲击强度,与成核剂Talc和TMC-300相比,添加WF对PLA的拉伸性能和弯曲性能改善效果更为显著,在WF较优添加量条件下(1wt%),复合材料的断裂伸长率、拉伸强度和弯曲强度与纯PLA相比分别提高了27%、17%和18%。采用差示扫描量热法比较3种成核剂对PLA的结晶行为影响,结果表明添加1wt%WF提高了PLA非等温结晶的结晶度,但低于添加1wt%Talc和0.5wt%TMC-300的复合材料结晶度。根据等温结晶动力学分析,WF可以缩短PLA在等温结晶过程的半结晶时间,加快PLA的结晶速率,添加1wt%WF、1wt%Talc和0.5wt%TMC-300后PLA在110℃等温结晶的半结晶时间从23.6 min分别降低至7.2、2.7和1.4 min。热台-偏光显微镜观察结果表明,不同成核剂诱导PLA在110℃等温结晶时的晶体形貌不同,WF、Talc为PLA结晶提供了大量成核位点,促进PLA晶粒微细化,而TMC-300诱导PLA产生纤维束状晶体且结晶速率明显加快,这与等温结晶动力学分析结果一致。蚀刻后的冲击断面形貌也表明,不同形貌的晶体堆积是复合材料的力学性能存在差异的原因之一。X射线衍射结果表明,3种成核剂均能促进PLA产生有序的α晶,其中添加WF时α(110)/(200)晶的衍射峰强度最高,同时WF能显著降低PLA的晶粒尺寸。杨木纤维可以作为PLA的一种生物基成核剂,具有增强和成核的双重作用。本文为进一步优化WF对PLA的成核作用提供基础,也为促进木塑复合材料的绿色发展提供借鉴。

关键词：生物质纤维聚乳酸成核剂生物基复合材料力学性能结晶行为

Low cost and low density chloride solid electrolyte for all solid state cathode with high active material ratio

在线全文

学校读者我要写书评

暂无评论

Nano Research 2024年第10期17卷 8826-8833页

作者： Hao-Yuan Tan Mei-Yu Zhou Zhongyuan Huang Jin-Da luo Jing-Tian Yang Jian-Ping Wang Ye-chao Wu Xiao-Bin Cheng Zi-Wei Wang Xu-Dong Hao Linjun Wang Ke Gong Yi-Chen Yin Yinguo Xiao Hong-Bin Yao Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of ChinaHefei 230026China Department of Applied Chemistry University of Science and Technology of ChinaHefei 230026China School of Advanced Materials Peking University Shenzhen Graduate SchoolShenzhen 518055China

Chloride solid electrolytes(SEs)have attracted widespread attention due to their high room-temperature ionic conductivity and excellent cathode ***,the conventionally selected central metal elements(e.g.,In,Y and Ta)are usually rare and heavy,inevitably causing the high cost and high density of the obtained chloride ***,by choosing abundant and light Mg and Al as central metal elements,we develop a cheap and low density Li_(1.2)Mg_(0.95)Al_(0.3)Cl_(4)SE for high active material ratio in all solid state *** replacement of Mg^(2+)by Al^(3+)in the framework yields vacancies and lowers the non-lithium metal ions occupancy at Mg/Li co-occupied 16d site,effectively relieving the blocking effects by Mg^(2+)in the pristine spinel Li_(2-2x)Mg_(1+x)Cl_(4).Thus,a significantly improved room-temperature conductivity of 3.08×10^(-4)S·cm^(-1)is achieved,two orders of magnitude higher than that of Li_(1.2)Mg_(1.4)Cl_(4).More attractively,its low density of only 1.98 g·cm-3 enables low SE mass ratio in cathodes(only 16 wt.%)with still effective electrolyte/cathode contact and lithium-ion conduction *** charged to potential of 4.30 V,the asfabricated Li_(1.2)Mg_(0.95)Al_(0.3)Cl_(4)-based solid lithium battery with uncoated NCM523 cathode can be cycled for over 100 cycles with a capacity retention of 86.68%at room temperature.

关键词： chloride solid electrolytes low cost low density Li+conductivities